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Genetic Code and Regulation

Genetic Code and Regulation
In some organelles in eukaryotes, the genetic code for some codons

are partially same
differs from that used in prokaryotes
are same
None of these

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Genetic Code and Regulation
Which of the following techniques was carried out by Nirenberg and Matthaei in 1961 to determine the first codon?

Labeled peptide binding to a ribosome
Mixed co-polymer mRNA synthesis
In vitro synthesis of a polypeptide using UUUUU
None of these

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Genetic Code and Regulation
In protein synthesis in prokaryotes

the initiating amino acid is methionine
the initiating amino acid is phenyl alanine
None of these
the initiating amino acid is N- formyl methionine

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Genetic Code and Regulation
How many amino acids will be encoded by 5' GAU GGU UGA UGU 3' sequence?

One
Four
Three
Two

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Genetic Code and Regulation
In prokaryotes, AUG encodes

alanine
N-formyl methionine
methionine
a stop codon

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Genetic Code and Regulation
The genetic code is

kingdom-specific
universal
universal except for rare exceptions in mitochondria and some protozoa
species-specific

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